diff --git a/fhem/FHEM/10_OWServer.pm b/fhem/FHEM/10_OWServer.pm
index 8d74ac2db..fe9b6e82d 100644
--- a/fhem/FHEM/10_OWServer.pm
+++ b/fhem/FHEM/10_OWServer.pm
@@ -214,7 +214,7 @@ OWServer_Notify($$)
 
   foreach my $d (keys %defs) {
     next if($defs{$d}{TYPE} ne "OWServer");
-    OWServer_OpenDev($hash);
+    OWServer_OpenDev($defs{$d});
   }
 
   return undef;